Hello All!! Its great to see there are so many proud odyssey owners out there! So I just purchased a 2005 Odyssey EX-L with a blown motor and have some interesting findings as I dismantle this engine.
The previous owner tells of driving the car on the interstate only to suddenly have the engine stop running as she coasted to a halt on the side of the road. She towed it to a local dealer and they told her it needed a new engine so she took it to an independent shop and they agreed with the previous diagnosis. So she listed it in the classifieds where I was happy to stumble upon it as I am looking to replace my V70XC volvo as it has reached 200,000miles and its family seating capacity.
So as I tear this engine down I find two exhaust valve springs floating around in the head. There are two exhaust valves on a cylinder that are without springs/retainers/keepers...but I only see springs:huh: so as you may imagine the piston looks like a gorilla took a hammer and chisel to it fro the beating it took by the two renegade valves (may they rest in pieces). I have only seen this through the spark plug hole with my scope, but its bad.
So my theory is either the keepers came off of the valve(seems unlikely) or the rod/wrist pin/pinston came loose and kept the valves closed as some how the rocker compressed the spring freeing the keepers. I have yet to attempt to rotate the motor to look to see if the piston is moving but this is an entirely new mode of engine failure. I assumed the timing belt was to blame...skipped teeth, broken belt, bad tensioner, etc. but none of these scenarios are true as timing is spot on.
So any J35 gurus out there witnessed this failure before? I thought I would be able to repair this motor but I as I disassemble the engine may be DOA as I imagine metal shavings have found their way into all oil passages. At any rate I expected the worst scenario (sourcing used engine) but was hoping for the best!! Oh well!! I'll be dropping this motor soon!
Anyone have a used J35A7 they want to get rid of
D!
The previous owner tells of driving the car on the interstate only to suddenly have the engine stop running as she coasted to a halt on the side of the road. She towed it to a local dealer and they told her it needed a new engine so she took it to an independent shop and they agreed with the previous diagnosis. So she listed it in the classifieds where I was happy to stumble upon it as I am looking to replace my V70XC volvo as it has reached 200,000miles and its family seating capacity.
So as I tear this engine down I find two exhaust valve springs floating around in the head. There are two exhaust valves on a cylinder that are without springs/retainers/keepers...but I only see springs:huh: so as you may imagine the piston looks like a gorilla took a hammer and chisel to it fro the beating it took by the two renegade valves (may they rest in pieces). I have only seen this through the spark plug hole with my scope, but its bad.
So my theory is either the keepers came off of the valve(seems unlikely) or the rod/wrist pin/pinston came loose and kept the valves closed as some how the rocker compressed the spring freeing the keepers. I have yet to attempt to rotate the motor to look to see if the piston is moving but this is an entirely new mode of engine failure. I assumed the timing belt was to blame...skipped teeth, broken belt, bad tensioner, etc. but none of these scenarios are true as timing is spot on.
So any J35 gurus out there witnessed this failure before? I thought I would be able to repair this motor but I as I disassemble the engine may be DOA as I imagine metal shavings have found their way into all oil passages. At any rate I expected the worst scenario (sourcing used engine) but was hoping for the best!! Oh well!! I'll be dropping this motor soon!
Anyone have a used J35A7 they want to get rid of